Side by side comparison and review of August EP650B and Poly Voyager 4220. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | August EP650B | Poly Voyager 4220 |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC - USB, 3.5 mm jack | Headset - Bluetooth - wireless | |
|---|---|---|---|
| Series | - | 4200 UC Series | |
| Height | 17.66 cm | - | |
| Width | 18.86 cm | - | |
| Depth | 7.1 cm | - | |
| Weight | 235 g | 150 g | Poly Voyager 4220 are lighter than August EP650B headphones. |
| Recommended Use | Portable electronics, computer | - | |
| Bluetooth Range (Operating Distance) | 10 m | 30 m | Poly Voyager 4220 have a greater operating distance than August EP650B. |
| SOUND QUALITY | August EP650B | Poly Voyager 4220 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Foldable | Yes | - | August EP650B can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 5.0 | Poly Voyager 4220 have a more advanced version of Bluetooth than August EP650B. |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, mSBC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 60 - 20000 Hz | 20 - 20000 Hz | Poly Voyager 4220 offer a larger frequency range than August EP650B. |
| Total Harmonic Distortion (THD) | 1% | - | |
| Impedance | - | 32 Ohm | |
| Diaphragm | 50 mm | 32 mm | August EP650B have a thicker diaphragm than Poly Voyager 4220. |
| Signal-To-Noise Ratio | 85 dB | - | |
| Features | Bluetooth aptX technology | SoundGuard DIGITAL Technology |
| MICROPHONE | August EP650B | Poly Voyager 4220 |
|---|
| Form Factor | Built-in | Headset microphone | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | - | Uni-directional, MEMS-directional | |
| Noise Cancelling | - | Yes | Poly Voyager 4220 microphone can cancel out ambient noise. |
| Frequency Response | - | 100 - 6800 Hz | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | August EP650B | Poly Voyager 4220 |
|---|
| Controls | - | Mute, volume, answer/end, play/pause, next/previous track, reject call, redial, voice assistant |
|---|
| CABLE | August EP650B | Poly Voyager 4220 |
|---|
| Cable Type | Headphones cable - detachable | - |
|---|
| FEATURES | August EP650B | Poly Voyager 4220 |
|---|
| Features | - | Voice alerts |
|---|
| BATTERY AND CHARGING | August EP650B | Poly Voyager 4220 |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | Headset battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | 220 mAh | 360 mAh | Poly Voyager 4220 have a higher battery capacity than August EP650B. |
| Battery Life | 10 hour(s) | 15 hour(s) | Poly Voyager 4220 lasts longer on a single charge than the August EP650B. |
| Battery Life Details | - | Continuous playback: up to 15 hours Continuous talk: up to 12 hours |
|
| Standby Time | 720 hours | 312 hours | August EP650B have longer standby time than Poly Voyager 4220. |
| Charging Time | 2 hour(s) | 1.5 hour(s) | Poly Voyager 4220 recharge faster than August EP650B. |
| CONNECTIONS | August EP650B | Poly Voyager 4220 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) USB |
- |
|---|
| OTHERS | August EP650B | Poly Voyager 4220 |
|---|
| Included Accessories | - | Bluetooth USB adapter | |
|---|---|---|---|
| Compatibility | iPhone, iPad, iPod, Android phone | - | |
| Software Certification | - | Certified for Microsoft Teams |
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